Sprout/sprout/utility/pair/second.hpp
2013-02-08 00:49:47 +09:00

23 lines
639 B
C++

#ifndef SPROUT_UTILITY_PAIR_SECOND_HPP
#define SPROUT_UTILITY_PAIR_SECOND_HPP
#include <sprout/config.hpp>
#include <sprout/tuple/tuple/get.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/utility/pair/tuple.hpp>
namespace sprout {
//
// second
//
template<typename T>
inline SPROUT_CONSTEXPR auto
second(T&& t)
SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(sprout::tuples::get<1>(sprout::forward<T>(t))))
-> decltype(sprout::tuples::get<1>(sprout::forward<T>(t)))
{
return sprout::tuples::get<1>(sprout::forward<T>(t));
}
} // namespace sprout
#endif // #ifndef SPROUT_UTILITY_PAIR_SECOND_HPP